CN100362482C - Dual-machine back-up realizing method and system - Google Patents
Dual-machine back-up realizing method and system Download PDFInfo
- Publication number
- CN100362482C CN100362482C CNB2005100851457A CN200510085145A CN100362482C CN 100362482 C CN100362482 C CN 100362482C CN B2005100851457 A CNB2005100851457 A CN B2005100851457A CN 200510085145 A CN200510085145 A CN 200510085145A CN 100362482 C CN100362482 C CN 100362482C
- Authority
- CN
- China
- Prior art keywords
- server
- state
- attitude
- main
- standby
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Abstract
The present invention discloses a method for realizing double-computer backup. Firstly, two servers for realizing the double-computer backup are respectively added with an interface for communicating with the other party. Then through signaling exchange of a main server and a spare server, the switch of a main using state and a spare using state of the two servers is realized; through the main server, service data is synchronously sent to the spare server to realize data synchronization of the two servers. Meanwhile, the present invention discloses a double-computer backup system which comprises a main server, a spare server and a client. The method provided by the present invention is not limited by an operation system, is capable of operating in various operation system platforms, is realized completely through software, and does not increase any hardware cost. The system provided by the present invention is not limited by server hardware, and the double-computer backup system can be formed by combining any two kinds of servers; the system has fine compatibility; the existing single computer system is convenient to be upgraded to the double-computer backup system which does not need to share storage mediums and saves space.
Description
Technical field
The present invention relates to the dual-host backup field, be specifically related to a kind of dual-host backup implementation method and system.
Background technology
At present, can steady in a long-term move, provide Redundancy Design to its part parts, as power supply redundancy, network interface card redundancy, hard disk mirror-image etc. in order to ensure the carrier grade service device.But, if the critical component of server breaks down, as central processing unit (CPU) fault, memory failure, main board failure etc., whole server will be out of service, can't continue to provide service, the result can have a strong impact on the operation of total system, for example: cause service disconnection etc.
Under situation about breaking down at a station server, another station server can replace it that service is provided at short notice.The Windows 2000 Advanced Server operating systems of Microsoft company provide the service of trooping, and by this service, Windows 2000 Advanced Server operating systems can utilize two-server that the dual-host backup function is provided.As shown in Figure 1, server 1 and server 2 are formed the service system of trooping, and they share storage medium, and after server 1 quit work, server 2 will be taken over it service is provided.Like this, the service of providing for client 1,2,3 may be subjected to of short duration influence, but can permanent loss.
The shortcoming of prior art is as follows:
1, is subjected to the restriction of operating system.The version of operating system must be that Windows NT Server is more than 4.0.
2, storage medium is shared, and costs an arm and a leg, and limited by the region.Two-server is by small computer system interface (SCSI, Small Computer System Interface) links to each other with the storage medium of sharing, make hardware cost very expensive, simultaneously, because the distance that SCSI supports is very short, so the deposit position of two-server is limited.
3, be necessary for shared storage medium parking space is provided.
Summary of the invention
In view of this, fundamental purpose of the present invention is to provide a kind of dual-host backup implementation method, with the dual-host backup of realizing not being subjected to the operating system restriction, not increasing hardware cost.
Simultaneously, the invention provides a kind of two-unit standby system, to realize not being subjected to the dual-host backup of server hardware restriction.
For achieving the above object, technical scheme of the present invention is achieved in that
A kind of dual-host backup implementation method, on first, second server, increase respectively with to the interface of side communication to form two-unit standby system, it is the main server of using that first server activates, second server activates and is standby server, first server is given second server with the service data synchronized transmission, and this two server is regularly to the other side's transmit status notification message, and this method further comprises:
A, first server need carry out state and switch, to second server transmit status handoff request;
After B, second server are received this state handoff request, judge the current switching condition that whether satisfies, if not, return refusal for first server and switch message that this flow process finishes; Otherwise, to return for first server and allow to switch message, first server receives after the described permission switching message that enter positive deactivated state, release is main uses related resource, and after having discharged, enters standby attitude; And second server is adjusted into the main attitude of using with self state after receiving that indication that first server is sent has entered the state notifying of standby attitude.
Described two-server increase separately with to the number of the interface of side communication greater than 1.
It is that the master specifically comprises with server that described first server activates:
First server begins initialization, and judges whether self can enter positive activated state, if, distribute the main related resource of use, and use attitude distributing laggard becoming owner of, become to lead and use server; Otherwise, judge whether self can enter positive deactivated state, if can enter, then enter standby attitude, become standby server; If can not enter, then keep current initialization attitude constant.
Described first server judges that self whether can enter positive activated state specifically comprises:
First server receives the state notifying that second server returns, if the state that returns is the initialization attitude, then through consultation or preestablish principle, judge whether self can enter positive activated state, if then confirm to enter positive activated state, otherwise affirmation can not enter positive activated state; If the state that returns is standby attitude, then confirm to enter positive activated state.
Described first server judges that self whether can enter positive deactivated state specifically comprises:
First server receives the state notifying that second server returns, and uses attitude if the state that returns is the master, confirms that then self can enter positive deactivated state.
Described second server activates and specifically comprises for standby server:
Second server judges whether the state of first server that receives is the main attitude of using, if second server activates and is standby server; Otherwise, keep current state constant.
Described first server specifically comprises to second server the service data synchronized transmission:
First server regularly sends to second server with file by file transfer protocol (FTP) FTP;
Perhaps, first server at first adopts FTP and second server to realize then service data being write first server and second server simultaneously synchronously;
Perhaps, the data synchronization technology that provides of the first server through database management system is with the database of service data synchronized transmission to second server.
The sql server SQL Server database that the database of described second server provides for Microsoft,
Described data synchronization technology is: Log backup/recovery technology that SQL Server database provides, or things synchronization replication technology.
The described second server of step B judges currently whether satisfy switching condition and specifically comprise:
Second server judges currently whether finished data sync, and current self satisfy become main requirement with server, if judge the current switching condition that satisfies; Otherwise, judge the current switching condition that do not satisfy.
The described second server of step B is adjusted into state and main comprises with attitude: second server enters positive activated state, distributes the main related resource of use, and uses attitude distributing laggard becoming owner of, and becomes the main server of using.
Described two-unit standby system further comprises: first server provides the client of service for it,
And described first server further comprises after entering standby attitude: client is initiatively initiated the request of connecting according to the session information of self preserving;
Perhaps, described second server enters the master and uses attitude, becomes the master and further comprises with after the server: this second server is initiated the request of connecting according to the session information of self preserving to client.
The described second server of step B returns to first server and allows further to comprise after the switching message: second server receives that the indication that first server is sent is in main state notifying with attitude, then continues to keep standby attitude.
Described method further comprises:
Second server is not received the definition status notification message of first server, and second server initiatively enters positive activated state, distributes the master with behind the related resource, enters the master and uses attitude, becomes the main server of using.
Described master comprises at least with related resource: first server and second server are that share, that be used for the client addressing and can only be by the main virtual address that takies with server at synchronization.
1 one kinds of two-unit standby systems comprise first server, second server and client, have the interface that communicates with the other side on first server and the second server respectively, and this two server is regularly to the other side's transmit status notice, wherein,
First server: activation is the main server of using, for client provides service, and give second server with the service data synchronized transmission, simultaneously, when needs switch to standby attitude, give second server transmit status handoff request, and when message is switched in the permission that receives second server, enter positive deactivated state, discharge the main related resource of using, release finishes, and enters standby attitude;
Second server: activate and be standby attitude, receive the service data that first server sends, and after receiving the state handoff request of first server, return for first server and allow to switch or refusal switching message, after receiving that indication that first server is sent enters the state notifying of standby attitude, oneself state is adjusted into the main attitude of using;
Client: be used for to first server of using server as the master or second server transmission services request, or receive the service response of returning with first server or the second server of server as main.
Described first server and second server are further used for respectively, when current state is the initialization attitude, adjust oneself state according to the state that the other side returns;
And/or described second server is further used for, and for standby attitude and after not receiving the other side's definition status notice, initiatively enters the main attitude of using current;
And/or described first server is further used for, just enter main when use attitude, according to the session information of self preserving, to the client transmission request of connecting.
Described client is further used for, with as main with behind first server or second server interrupt communication of server, according to the session information of self preserving, to as main first server or the second server transmission request of connecting with server.
Compared with prior art, dual-host backup implementation method provided by the present invention and system, at first realizing increasing respectively on the two-server of dual-host backup and interface to side communication, then by main signaling exchange with server and standby server, the master who realizes two-server uses, the switching of standby attitude, and by main with server with the service data synchronized transmission to standby server, realize the data sync of two-server.Method provided by the invention is not limited by operating system, can move on various operating system platforms; Realize by software fully, do not increase any hardware cost.System provided by the invention is not limited by server hardware, and any two types server all can be formed two-unit standby system; Compatible good, existing one-of-a-kind system can conveniently be upgraded to two-unit standby system; Need not share storage medium, save the space.
Description of drawings
Fig. 1 is system's composition diagram of the existing techniques in realizing service of trooping;
Fig. 2 realizes system's composition diagram of dual-host backup for the present invention;
Fig. 3 is the process flow diagram of realization dual-host backup provided by the invention;
Fig. 4 is the process flow diagram of the specific embodiment of realization dual-host backup provided by the invention.
Embodiment
The present invention is further described in more detail below in conjunction with drawings and the specific embodiments.
Two-unit standby system among the present invention can utilize the server of two any types to realize, only needs to increase respectively on this two-server and interface to side communication, gets final product as serial ports, network interface etc.In order to guarantee reliable communication, can set a plurality of communication interfaces, guaranteeing when the communication interface fault, other communication interface can continue to realize the communication between two servers.
Fig. 2 is system's composition diagram that the present invention realizes dual-host backup, and as shown in Figure 2, this system mainly comprises:
Server 1 and server 2: at synchronization, this two server is respectively main with server and standby server, and, regularly to the other side's transmit status notification message, and,
The master uses server, is used to client that service is provided, and gives standby server with the service data synchronized transmission, simultaneously, when the needs switching state, give standby server transmit status handoff request, and when message is switched in the permission that receives standby server, oneself state is switched to standby attitude;
Standby server, be used to receive the main service data that sends with server, and receiving the master, allow switching or refusal to switch message for main returning with server with after the state handoff request of server, according to the main state notifying that returns with server, adjust oneself state then.
Further, server 1 and 2 is respectively applied for: when current state is the initialization attitude, according to the state that the other side returns, adjust oneself state;
Perhaps further be respectively applied for: for standby attitude and after not receiving the other side's definition status notice, initiatively enter the main attitude of using current;
Perhaps further be respectively applied for: just enter main when use attitude, according to the session information of self preserving, to the client transmission request of connecting.
Client: be used for sending services request with server, or receive the main service response of returning with server to main.
Further, client is used for: after using the server interrupt communication with the master, according to the session information of self preserving, send the request of connecting to main with server.
Client can be 1, also can be a plurality of.
Fig. 3 is the process flow diagram of realization dual-host backup provided by the invention, and as shown in Figure 3, its concrete steps are as follows:
Step 301: an activation in the two-server is the main server of using, another activation is a standby server, the master gives standby server with server with the service data synchronized transmission, simultaneously, main server and the standby server used regularly given the other side's transmit status notification message, notifies the other side own present located state.
Step 302: when the needs switching state, the main server of using is initiated the state handoff request to standby server.
After the master broke down with server, when perhaps the manual request state switched, the master can initiatively initiate the state handoff request with server.
Step 303: standby server is received this state handoff request, judges the current switching condition that whether satisfies, if, execution in step 305; Otherwise, execution in step 304.
Step 304: standby server refuses to switch message for main returning with server, and this flow process finishes.
If currently carrying out data synchronization process, or standby server produced hardware and software failure, makes standby server not satisfy to become main requirement with server etc., and standby server will be refused to switch.
Step 305: standby server allows to switch message for main returning with server.
Step 306: standby server is received main state notifying with server, according to main state with server, adjusts oneself state.
Received permission switching message as if main with server, the master will enter standby attitude with server, becomes standby server, and so, standby server receives that former master with behind the state notifying of server, will enter the master and use attitude, becomes the master and uses server; As if owing to reasons such as communication interruptions temporarily, the winner is not received with server allow to switch message, so, the master will continue to keep the main attitude, standby server used to receive the master with behind the state notifying of server with server, just still keeps standby attitude.
Fig. 4 is the process flow diagram of the specific embodiment of realization dual-host backup provided by the invention, for simplicity, two-server is called server 1 and server 2.As shown in Figure 4, its concrete steps are as follows:
Step 401: a station server is server 1 beginning initialization.
Step 402: server 1 judges according to decision policy whether self can enter positive activated state, if, execution in step 403; Otherwise, execution in step 411.
Server enter main with attitude before, be introduced into positive activated state, to distribute the main related resource of using; Equally, server will be introduced into positive deactivated state before entering standby attitude, to discharge related resource.
Server 1 is when initialization, and meeting is made a strategic decision according to the state notifying that server 2 returns, and is specific as follows:
Under following situation, server 1 can enter positive activated state:
One, server 2 also is the initialization attitude, and through consultation or according to preestablishing principle, current server 1 can enter positive activated state;
Preestablish principle and can be and specify wherein a station server to enjoy the right that preferentially enters positive activated state; Also can when the server initialization, generate a random code simultaneously, set the little person of random code and enjoy the right that preferentially enters positive activated state.
Two, server 2 is standby attitudes.
When server 2 is main when using attitude, server 1 enters positive deactivated state.
In all the other situations is under the following situation, and server 1 will continue to keep the initialization attitude:
One, server 2 also is the initialization attitude, and through consultation or according to preestablishing principle, current server 1 can not enter positive activated state;
Though two, server 2 return messages, server 2 states are uncertain;
Three, server 2 is positive deactivated states;
Four, server 2 is positive activated states.
Step 403: this server is that server 1 enters positive activated state, begins to distribute the master to use related resource, assigns, and enters the master and uses attitude, becomes the main server of using, and gives standby server with the service data synchronized transmission.
If another server is that server 2 is in the initialization attitude, so, the state notification message that server 2 meetings are returned according to server 1, judge whether server 1 has entered the master and used attitude, if server 2 just enters positive deactivated state, enter standby attitude then, become standby server; Otherwise, keep current state constant.
The master comprises with related resource: virtual ip address etc.Two-server respectively has a physical address, and this physical address can be used for the mutual addressing between them.Simultaneously, in active and standby handoff procedure, not influencing externally provides service, transparent handoff procedure promptly is provided, two-server can be shared a virtual ip address, and this virtual ip address is only taken with server by main at synchronization, is used for client to main addressing with server.
Step 404: when the needs switching state, the main server of using is to standby server transmit status handoff request, and attitude is switched in the request of self entering simultaneously.
After the master broke down with server, when perhaps the manual request state switched, the master can initiatively initiate the state handoff request with server.
Step 405: standby server is received this state handoff request, judges the current switching condition that whether satisfies, if, execution in step 407; Otherwise, execution in step 406.
Step 406: standby server refuses to switch message for main returning with server, and this flow process finishes.
Step 407: standby server allows to switch message for main returning with server, self enters simultaneously and allows to switch attitude.
If main having received with server allows to switch message, will enter positive deactivated state, has discharged the master with related resource after, enter standby attitude, become standby server.
If owing to reasons such as the temporary transient interruptions of communication, main not receiving with server allows to switch message, will continue to remain on the main attitude of using.
Step 408: standby server is received main state notifying with server, judges that the main state that returns with server is that standby attitude or master use attitude, if standby attitude, execution in step 409; If the main attitude, execution in step 410 used.
Step 409: standby server enters positive activated state, begins to distribute the master to use related resource, and resources allocation finishes, and enters the master and uses attitude, becomes the master and uses server, and simultaneously service data being sent to new standby server is the former main server of using, and this flow process finishes.
The master who discharges comprises with related resource: virtual ip address etc.
Step 410: standby server enters positive deactivated state, reenters standby attitude then, still is standby server, and this flow process finishes.
Step 411: this server judges according to decision policy whether self can enter positive deactivated state, if, execution in step 412; Otherwise, return step 402.
Step 412: this server enters positive deactivated state, begins to discharge related resource, and release finishes, and enters standby attitude, becomes standby server.
In active and standby handoff procedure, serve new master from former master with server closing and use the startup of server service, can produce at interval very little service disruption, and the out-of-service that provides is provided.At this moment, client can initiatively be initiated the request of connecting according to the session information of self preserving; Perhaps, wait for the main request of initiating according to session information with server with the new master after the attitude of connecting that enters.Session information comprises: session identification, client-side information, server info etc.
In the present invention, main with realizing between server and the standby server that data sync can adopt following dual mode:
One, if standby server is with the file mode reading of data, then the master can pass through file transfer protocol (FTP) (FTP, File Transfer Protocol) with server, regularly file is sent to standby server; Perhaps, main adopt FTP and standby server to realize synchronously when beginning, then service data is write simultaneously self and standby server, with the efficient of raising data transmission with server.
Two,, then can realize data sync by the data synchronization technology that data base management system (DBMS) provides if standby server is with the database mode reading of data.As: the sql server that the type of database of standby server provides for Microsoft (SQL Server), Log backup/recovery technology or the things synchronization replication technology that then can select SQL Server database to provide realize data sync.
In addition, if standby server in timing length, is not received main definition status notification message with server, then standby server thinks main unusual with the server generation, can initiatively enter positive activated state, distributes main with behind the related resource, enter the master and use attitude, become the main server of using.
The above only is process of the present invention and method embodiment, in order to restriction the present invention, all any modifications of being made within the spirit and principles in the present invention, is not equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (17)
1. dual-host backup implementation method, it is characterized in that, on first, second server, increase respectively with to the interface of side communication to form two-unit standby system, it is the main server of using that first server activates, second server activates and is standby server, first server is given second server with the service data synchronized transmission, and this two server is regularly to the other side's transmit status notification message, and this method further comprises:
A, first server need carry out state and switch, to second server transmit status handoff request;
After B, second server are received this state handoff request, judge the current switching condition that whether satisfies, if not, return refusal for first server and switch message that this flow process finishes; Otherwise, to return for first server and allow to switch message, first server receives after the described permission switching message that enter positive deactivated state, release is main uses related resource, enters standby attitude; After second server receives that first server has entered the state notifying of standby attitude, self state is adjusted into the main attitude of using.
2. the method for claim 1 is characterized in that, described two-server increase separately with to the number of the interface of side communication greater than 1.
3. the method for claim 1 is characterized in that, it is that the master specifically comprises with server that described first server activates:
First server begins initialization, and judges whether self can enter positive activated state, if, distribute the main related resource of use, and use attitude distributing laggard becoming owner of, become to lead and use server; Otherwise, judge whether self can enter positive deactivated state, if can enter, then enter standby attitude, become standby server; If can not enter, then keep current initialization attitude constant.
4. method as claimed in claim 3 is characterized in that, described first server judges that self whether can enter positive activated state specifically comprises:
First server receives the state notifying that second server returns, if the state that returns is the initialization attitude, then through consultation or preestablish principle, judge whether self can enter positive activated state, if then confirm to enter positive activated state, otherwise affirmation can not enter positive activated state; If the state that returns is standby attitude, then confirm to enter positive activated state.
5. method as claimed in claim 3 is characterized in that, described first server judges that self whether can enter positive deactivated state specifically comprises:
First server receives the state notifying that second server returns, and uses attitude if the state that returns is the master, confirms that then self can enter positive deactivated state.
6. the method for claim 1 is characterized in that, described second server activates and specifically comprises for standby server:
Second server judges whether the state of first server that receives is the main attitude of using, if second server activates and is standby server; Otherwise, keep current state constant.
7. the method for claim 1 is characterized in that, described first server specifically comprises to second server the service data synchronized transmission:
First server regularly sends to second server with file by file transfer protocol (FTP) FTP;
Perhaps, first server at first adopts FTP and second server to realize then service data being write first server and second server simultaneously synchronously;
Perhaps, the data synchronization technology that provides of the first server through database management system is with the database of service data synchronized transmission to second server.
8. method as claimed in claim 7 is characterized in that, the sql server SQL Server database that the database of described second server provides for Microsoft,
Described data synchronization technology is: Log backup/recovery technology that SQL Server database provides, or things synchronization replication technology.
9. the method for claim 1 is characterized in that, the described second server of step B judges currently whether satisfy switching condition and specifically comprise:
Second server judges currently whether finished data sync, and current self satisfy become main requirement with server, if judge the current switching condition that satisfies; Otherwise, judge the current switching condition that do not satisfy.
10. the method for claim 1 is characterized in that, the described second server of step B is adjusted into state and main comprises with attitude: second server enters positive activated state, distributes the main related resource of use, and uses attitude distributing laggard becoming owner of, and becomes the main server of using.
11. method as claimed in claim 10 is characterized in that, described two-unit standby system further comprises: first server provides the client of service for it,
And described first server further comprises after entering standby attitude: client is initiatively initiated the request of connecting according to the session information of self preserving;
Perhaps, described second server enters the master and uses attitude, becomes the master and further comprises with after the server: this second server is initiated the request of connecting according to the session information of self preserving to client.
12. the method for claim 1, it is characterized in that, the described second server of step B returns to first server and allows further to comprise after the switching message: second server receives that the indication that first server is sent is in main state notifying with attitude, then continues to keep standby attitude.
13. the method for claim 1 is characterized in that, described method further comprises:
Second server is not received the definition status notification message of first server, and second server initiatively enters positive activated state, distributes the master with behind the related resource, enters the master and uses attitude, becomes the main server of using.
14. as claim 3 or 10 or 13 described methods, it is characterized in that described master comprises at least with related resource: first server and second server are that share, that be used for the client addressing and can only be by as the main virtual address that takies with first server or the second server of server at synchronization.
15. a two-unit standby system comprises first server, second server and client, it is characterized in that, has the interface that communicates with the other side on first server and the second server respectively, and this two server is regularly to the other side's transmit status notice, wherein,
First server: activation is the main server of using, for client provides service, and give second server with the service data synchronized transmission, simultaneously, when needs switch to standby attitude, give second server transmit status handoff request, and when message is switched in the permission that receives second server, enter positive deactivated state, discharge the master and use related resource, enter standby attitude;
Second server: activate and be standby attitude, receive the service data that first server sends, and after receiving the state handoff request of first server, return for first server and allow to switch or refusal switching message, after receiving that indication that first server is sent enters the state notifying of standby attitude, oneself state is adjusted into the main attitude of using;
Client: be used for to first server of using server as the master or second server transmission services request, or receive the service response of returning with first server or the second server of server as main.
16. system as claimed in claim 15 is characterized in that, described first server and second server are further used for respectively, when current state is the initialization attitude, adjust oneself state according to the state that the other side returns;
And/or described second server is further used for, and for standby attitude and after not receiving the other side's definition status notice, initiatively enters the main attitude of using current;
And/or described first server is further used for, just enter main when use attitude, according to the session information of self preserving, to the client transmission request of connecting.
17. system as claimed in claim 15, it is characterized in that, described client is further used for, main with behind first server or second server interrupt communication of server with conduct, according to the session information of self preserving, to sending the request of connecting as main first server or second server with server.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100851457A CN100362482C (en) | 2005-07-21 | 2005-07-21 | Dual-machine back-up realizing method and system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100851457A CN100362482C (en) | 2005-07-21 | 2005-07-21 | Dual-machine back-up realizing method and system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1851657A CN1851657A (en) | 2006-10-25 |
| CN100362482C true CN100362482C (en) | 2008-01-16 |
Family
ID=37133136
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100851457A Expired - Fee Related CN100362482C (en) | 2005-07-21 | 2005-07-21 | Dual-machine back-up realizing method and system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100362482C (en) |
Families Citing this family (30)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101179366B (en) * | 2006-11-06 | 2011-04-20 | 中兴通讯股份有限公司 | Method of synchronizing master/slave data of digital subscriber line access multiplexer |
| CN100461704C (en) * | 2006-12-02 | 2009-02-11 | 华为技术有限公司 | Data synchronizing method |
| CN100449548C (en) * | 2007-04-11 | 2009-01-07 | 华为技术有限公司 | Method and system for synchronizing data base |
| CN100547556C (en) * | 2007-12-07 | 2009-10-07 | 中国科学院计算技术研究所 | A kind of storage server system and data guard method thereof |
| CN101252464B (en) * | 2008-03-17 | 2011-04-13 | 华为技术有限公司 | Dual system and dual system online upgrading method |
| CN101291203B (en) * | 2008-06-04 | 2012-07-18 | 中兴通讯股份有限公司 | Master control board switching method intensifying management of expanding sub-support in SDH device |
| CN101340272B (en) * | 2008-08-25 | 2012-12-19 | 中兴通讯股份有限公司 | Double machine switching method and system |
| CN102045183B (en) * | 2009-10-22 | 2016-03-02 | 上海贝尔股份有限公司 | A kind of for carrying out the method and apparatus automatically recovered to the service disruption in network |
| CN101908980B (en) * | 2010-08-20 | 2015-06-03 | 中兴通讯股份有限公司 | Network management upgrading method and system |
| CN102480382B (en) * | 2010-11-29 | 2016-03-30 | 中兴通讯股份有限公司 | The method and system of big customer's client are served in attendant console system |
| CN102761428A (en) * | 2011-04-27 | 2012-10-31 | 鸿富锦精密工业（深圳）有限公司 | Server system and server switching method |
| CN102790684B (en) * | 2011-05-16 | 2015-03-11 | 中国移动通信集团北京有限公司 | Service information invocation method and system and enterprise service bus server |
| CN102891762B (en) * | 2011-07-20 | 2016-05-04 | 赛恩倍吉科技顾问（深圳）有限公司 | The system and method for network data continuously |
| WO2012106911A1 (en) * | 2011-07-21 | 2012-08-16 | 华为技术有限公司 | Controller, and method and system for controlling power output using same |
| CN103580906B (en) * | 2012-08-09 | 2018-02-27 | 腾讯科技（深圳）有限公司 | A kind of method of data backup, system and server |
| CN102981777B (en) * | 2012-10-29 | 2016-04-13 | 中国铁道科学研究院 | A kind of control method of data access and system |
| CN103840963B (en) * | 2012-11-27 | 2017-01-25 | 腾讯科技（深圳）有限公司 | Method and device for updating server data |
| CN103166797B (en) * | 2013-03-18 | 2016-04-06 | 京信通信系统（中国）有限公司 | A kind of management method of application module and device |
| CN104468221B (en) * | 2014-12-12 | 2018-09-18 | 北京国双科技有限公司 | Server failure hot change-over method, device and system |
| CN104468242A (en) | 2014-12-29 | 2015-03-25 | 同方威视技术股份有限公司 | Automatic switching method and system |
| CN105978746B (en) * | 2016-07-26 | 2019-02-01 | 北京沐星科技有限公司 | Game server group system and raising gamespace method of servicing |
| CN106354589A (en) * | 2016-08-24 | 2017-01-25 | 天津天大求实电力新技术股份有限公司 | Double-unit hot standby method of micro-grid energy management system service programs |
| CN107066480B (en) * | 2016-12-20 | 2020-08-11 | 创新先进技术有限公司 | Method, system and equipment for managing main and standby databases |
| CN106789246A (en) * | 2016-12-22 | 2017-05-31 | 广西防城港核电有限公司 | The changing method and device of a kind of active/standby server |
| CN107315660A (en) * | 2017-06-29 | 2017-11-03 | 郑州云海信息技术有限公司 | A kind of two-node cluster hot backup method of virtualization system, apparatus and system |
| CN108932180A (en) * | 2018-06-21 | 2018-12-04 | 郑州云海信息技术有限公司 | A kind of disaster tolerance management method, device, storage medium and computer equipment matter |
| CN109992384B (en) * | 2019-03-18 | 2020-07-14 | 北京方鸿智能科技有限公司 | Service registration discovery coordination system and method thereof |
| CN110955210B (en) * | 2019-11-29 | 2021-10-19 | 广东嘉腾机器人自动化有限公司 | AGV scheduling method, device and system |
| CN111064618B (en) * | 2019-12-20 | 2023-02-03 | 北京华胜天成科技股份有限公司 | Method, device, equipment and storage medium for realizing high availability of server |
| CN111563010B (en) * | 2020-04-16 | 2023-07-28 | 深圳震有科技股份有限公司 | Data synchronization method, system and storage medium based on dual-computer redundancy system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1275000A (en) * | 1999-05-24 | 2000-11-29 | 松下电器产业株式会社 | Equipment and method for redundant switching control |
| US6247141B1 (en) * | 1998-09-24 | 2001-06-12 | Telefonaktiebolaget Lm Ericsson (Publ) | Protocol for providing replicated servers in a client-server system |
| CN1567737A (en) * | 2003-07-01 | 2005-01-19 | 深圳市中兴通讯股份有限公司 | A method for warm back-up of broad band switch-in server |
| CN1612495A (en) * | 2003-10-28 | 2005-05-04 | 港湾网络有限公司 | Main-standby conversion control method for communication device |
| CN1622483A (en) * | 2003-11-27 | 2005-06-01 | 华为技术有限公司 | A method for implementing software hot-backup of main and reserve machines |
-
2005
- 2005-07-21 CN CNB2005100851457A patent/CN100362482C/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6247141B1 (en) * | 1998-09-24 | 2001-06-12 | Telefonaktiebolaget Lm Ericsson (Publ) | Protocol for providing replicated servers in a client-server system |
| CN1275000A (en) * | 1999-05-24 | 2000-11-29 | 松下电器产业株式会社 | Equipment and method for redundant switching control |
| CN1567737A (en) * | 2003-07-01 | 2005-01-19 | 深圳市中兴通讯股份有限公司 | A method for warm back-up of broad band switch-in server |
| CN1612495A (en) * | 2003-10-28 | 2005-05-04 | 港湾网络有限公司 | Main-standby conversion control method for communication device |
| CN1622483A (en) * | 2003-11-27 | 2005-06-01 | 华为技术有限公司 | A method for implementing software hot-backup of main and reserve machines |
Non-Patent Citations (2)
| Title |
|---|
| 大规模机群中基于扩展FTP的文件管理. 龚道永，朱建涛.计算机工程，第31卷第7期. 2005 * |
| 远程数据实时复制系统的实现. 张震，傅宏，张建平.河南教育学院学报（自然科学版），第11卷第2期. 2002 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1851657A (en) | 2006-10-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100362482C (en) | Dual-machine back-up realizing method and system | |
| CN102439903B (en) | Method, device and system for realizing disaster-tolerant backup | |
| US20200274754A1 (en) | Arbitration Method, Apparatus, and System Used in Active-Active Data Centers | |
| US7711820B2 (en) | High availability for intelligent applications in storage networks | |
| CN101217353B (en) | A control method on multi-point dual redundancy system of call center | |
| US20060294241A1 (en) | Preserving sessions in a wireless network | |
| US8880703B2 (en) | Address distribution method, device and system thereof | |
| CN101110776B (en) | Backup method, backup device and backup system for data business | |
| CN101150439A (en) | A method, system and device for realizing master/slave switching | |
| CN105099793A (en) | Hot-standby method, hot-standby device and hot-standby system | |
| CN101984573A (en) | Method and system for distributed realization of LACP standard state machine | |
| CN106060088A (en) | Service management method and device | |
| CN112003716A (en) | Data center dual-activity implementation method | |
| CN106533736A (en) | Network device reboot method and apparatus | |
| CN100438362C (en) | A method for implementing software hot-backup of main and reserve machines | |
| CN102055950B (en) | MCU backup method and equipment in video conference | |
| CN103107906A (en) | Communication method between media boards, media boards and communication machine frame device | |
| CN101877631A (en) | Server and business switching method thereof | |
| CN105760260A (en) | Backup system and backup method | |
| CN104967691A (en) | Distributed storage control method and system | |
| CN110704250A (en) | Hot backup device of distributed system | |
| CN102891833A (en) | Network disaster tolerance method and network disaster tolerance system | |
| CN100362484C (en) | Method of multi-computer back-up | |
| CN108390919A (en) | A kind of message synchronization system and method for highly reliable two-node cluster hot backup | |
| CN101695029A (en) | Data backup method, active-standby switching method and communication system as well as related equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080116 Termination date: 20180721 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |